Dumping device



1,624,323 Apnl 12 1927 H. F. FLOWERS DUMPING DEVICE Filed Nov. 19, 1925 3 Sheets-Sheetl ma uw g j.

Y1,624,323 Apnl l2 1927' |-1T F. FLOWERS DUMPINGY DEVICE Filed Nov. 19, 1925 5 sheets-sheetz April /T/fc, d,

3 Sheets-Sheet 3 Patented Apr. 12, 1927.

narran srnrs HENRY FORT FLOWERS, OF FINDLAY, OHIO.

ner/reins DEVICE'.

Application led November This invention relates to improvementsin vehicle dumping devices ot the stationary type which serve for dumping vehicles having' tiltable bodies mounted upon an undertrame.

ln previous dumping devices of this type, has been customary to invert or tilt the vehicle as a who-le by means oil a cradle or rockin-g frame, into which thel vehicle was driven and clamps applied to prevent the separation of vehicle and dump structure. In some cases, the vehicle has been designed so that its trucks are held in position by a permanent and rigid structure adjacent the dumping; point, while' the body makes the necessary dumping movement.

s distinguished from these former devices, the present invention presents a structure by which the venicle under'frame remains stationary and which has clamping d dumping` devices movable into" and out oi operative position and when in non-operative position are entirely tree of and not in any possible Contact with a vehicle either ent ing or leaving' the dumping position.

A further object of the invention is to provide a simple and compact mechanism to move the damping' and clamping structure into and out of operz-rtivet position.

Another object is to provide alining and centering` devices to return the dumping ictare to the identical initial position zitter each operation. I

Still another object is to provide a cla-inp- Eng device which adapts itself 'toV the angle o'i the vehicle body during; demping and is thns prevented from buckling; or distorting` he vehicle body.

f1 further' object is to provide means for automatically and positively releasing the clamping structure from the vehicle body duniping structure when the two are in the correct relative position for dumping, and 'for returning` the two structures for cooperation after completion of the' dumping" movements, so that they may be simultaneously and co-opcratvely removed from the path of the vehicle.

lith these and other objects in view', as will appear in t course ot the toll-owing` mi@ specification and the accompanyingj drawings, there has been represented in the latter one form ot' execution ofv the mechanism, in conjunction with a dump car having trucks mounted upon rails. and a" body' adapted' to 19, 1925. Serin No; 70,076.

tilt in either direction for dumping and itself having closing doors which are automatically opened and closed during` the dumping and return of the body.

Fig. l shows the dumping mechanism in the non-operative position, with a car upon the dumping chute platform.

Fig. 2 shows in full lines the saine mechanism after movement intol the operative position, and in dotted lines the dumping; mechanism in the titled position of the car body.

Fig. 3 is a view in side elevation of the car, with the mechanism in operative position.

Figs. et and 5 are detail views in section approximately on line of Fig. 3', showing the clamping structure in different positions. n

ln these iigures, the dumping or discharge chiite l0 is represented in section, with the top girders ll mounted thereon, which in turn support the rails l2. rlhe dump car is supported upon the wheels 13 which run on these rails and carry the' trucks and underframe represented generally at lll. Carried by the brackets 15b at either side of the underframe is arranged a. hold-down bar l5, 15a and at suitable points of the underifram'e" are disposed the two trunnions and 16, which are symmetrical with each other and equally distant from the centi-al longitudinal axis of the car. The dum-p body represented generally at li? is inoilnted upon these trunnions as fulcruins for its tiltingjtoward the respective side. lt will be understood that it is preferred to' provide some clamping` or locking means between the larnnderframe, the trunnions, and the dinnp body proper, so that the latter will not be detached from the underra-ine during` the shocks and movements incident to discharge for th's purpose may be employed any snitable construction, but preferably that shown in my copending applications Serial Number 740,307, tiledV on September 27, 1921i, and Serial No. 66,791, tiled on Nov. to

which reference may be made for a detailed description ot the locking means which are here indicated generally at 18. The body 17 is provided with the hinged doors 17h at each sfde, which have the pivots 17C and are connected by links 18a to the securing` links i8, as set forth i-nthe aforesaid applications: inv this wise, when the car body' is tilted to'- Cil Ward either' side, the corresponding door is automatically swung about its pivot to per mit the discharge of the load in the body.

lt Will be understood that this car assembly of Wheels, underframe, trunnions and dump body may be propelled along the rails from the loading to the discharge point in any suitable manner, and that it may be provided With the customary accessory ap paratus such as brakes.

The dump body has a floor 19 of sheet metal which is curved downwardly ateach side into a normally vertical depending llange 20. The car body rests upon the trunnions 16 and 16 by means of a scres of gusset plates 22 which are rigidly secured to the car `floor, as by welding. The outer ends of these gusset plates and the push-up bar 21 are secured together for mutual reenforcement by the respective plates 23 which are Welded to each.

A cross-balk 30 beneath the girders 1l carrier; the operating mecoanism for the dumping device. rllhe electric motor 3l is preferably of a standard electric railway design, and by means of a suitable gear train contained within the casing 32 drives the intermediate gear 33 in one direction or the other according to the regulation of the current delivered to the field and armature of the motor. This intermediate gear 33 is journalled upon the cross-balk 30 for rotation about its own axis, and carries upon its shaft a pinion 35 which is keyed thereto for positive driving thereby. rllhe bulltvheel 36 is mounted on a shaft 37 journalled for rotation about its own axis upon the crossbalk 30; and by means of the teeth on the periphery of the bullvvheel 36 it is in driven engagement With the pinion 35. then the electric motor 3l is operated in one direction or the other, the bullivheel 36 is driven in a corresponding direction by means of the reduction train 32, the intermediate gear 33 and the pinion 35.

Pivotally mounted upon the shaft 37 of the bulhvheel 36 are a pair of radius arms 38 which have the hooks 39 formed on their upper ends at the side adjacent the rails, and which are so designed that these hooks are loosely but closely received over the hold-down bars 1 5 of the respective cars, when the radius arms 38 are moved to the operative position shown in full lines in Fig. 2. At the upper ends, these tivo radius arms 38 are connected by an apron 40 which is welded to the upper enc s of each of the arms and extends substantially parallel to the shaft 37 between the arms.

Pivotally mounted on the earA 4l forming an odset of one arm 33 is a lever 42 which normally is in a lovvered position by the action of gravity or a suitable return device not shown, A link 43 is jointed to this lever and extends through a guide member 44 on the arm 38 into operative engagement with the teeth on the bullvvheel 36. It Will be understood that when the bullwheel is lmoved in a counter-clockwise direction from the position shown in lFig. l, the link 43 is located between tivo of its teeth, as shown in this figure, and the radius arms 33 are positively moved in a counter-cloclnvise direction until the hooks 39 are presented above the hold-down bar l5 on t-he car underframe. During this movement, the lever 42 comes into contact with the hold-down bar l5 and is prevented from further movement, so that it finally assumes at its upper end a position parallel to the advancing edge of the arms 33, as shown in Fig. 2. During this movement of the lever 49 the link 43 is raised out of engagement with the teeth on the bullivheel 36, and the latter is thereby liberated from any engagement With the radius arms 33 and may thereafter continue to move in a counter-clockwise direction in dependently of these arms, during which time tl e radius arms remain resting against the hold-down bar l5, by reason of the fact that the Weight of the material in these arms and associated parts has been moved so that its center of gravity is beyond a vertical plane passing through the axis of the shaft 37. It may be remarked that in the event of an insutlicient engagement of the hook 39 and arms 33 with the bar l5, the lever 42 Will return and present its link 43 into engagement with the teeth on the bullvvheel 36, until the final predetermined position has been attained.

After the release of the radius arms 38 from the bullivheel 36 has occurred, the bull- Wheel 36 continues to revolve in a counterclockwise direction. A pin 45 is fastened solidly to the rim of the bullwheel 36, and serves as a pivot for the push link 46, which has the enlarged bearing member 47 supported on this pin 45 loosely revolublc with regard thereto. Un the outer end of the pin is a collar 43 which is keyed to the pin 45. A control link 49 is pivoted to the collar 43 at 40, and extends upwardly therefrom in a direction substantially parallel to that of the push link 46.

The push link 46 is preferably holloiv as shown in Figs. 4 and 5, and has mounted at its upper end the shackle 5l which has a socket 52 therein iitted for cooperation With the push-up bar 21 on a car. A retaining hook is pivoted in they shackle 5l by a shaft 54 to which it is keyed and which turns freely in apertures of the shackle. A crank arm 55 is keyed to the shaft 54 at the exterior of the shackle, and at its outer end l is jointedly connected to the control link 49. l/Vhen an upward thrust occurs upon the crank arm 55 with relation to the shackle 5l, the hook 53 is rotated clockwise from the position of Figure 4 to the position of lli Fig. 5, in which it engages the push-up bar 2l. It is preferred to secure the hollow push-link 46 and the shackle 5l together by means ot the alining pin 56 which is substantially parallell to the shatt 37, and as shown in Figure 3, extends for substantially the spread ofV the apron 40. This apron, as shown in Figs. l and 2, has notches 57 in its upper edge for receiving and guiding the alining pin 56 into the identical lowered position after each operation ot dumping, which assures that the socket 52 in the shackle 5l will always be presented in the proper relation beneath the push-up bar 21 of cach succeeding car.

ln order to support the under-trame oi' the vehicle against torsional strain during tilting, an automatically positioned support is provided. The lever arms 70 carry at their tops a bar 7l extendingparallel to the track in this embodiment adapted in the raised posit-ion to come close to or into slight engagement with the u-ndert'rame la, and are pivotedv at 72" to the chute training ll. Likewise pivoted relative.A to the chute framing il are the operating cranks 73 and the levers T4, the latter with the link T5 forming a` toggle to hold the lever arms 7() in raised position at the full extension of the toggle. The levers 74tare` connected by the links 76 to one end et the cranksV 73, and the other ends ot the latter are in turn positively connected by the links TT with the radius arms 3S at pivots 78.

The operation ot the device is substantially as follows:

A car is moved` to a position upon the rails l2 suoli that the hold-down bar l5v and the push-up ba-r 2l uponthe respective side ot the car are presented opposite the radius arms 31S'. The motor 3l iis then set in operation, and the bullwheel 36 moves in a counter-clockwise direction until the radius arms are presented against the hold-down bar l5, with their hooks 39 extendingv thereover: at this time. as set forth abo-ve, the lever l2 has caused the release oft the rad-ius arms ist trom the bulllwheel 3G. The bullwheel 236 continues to revolver in a` counterclockwise direction under the actuation ot' the electric motor 3l. Duringl this move ment, the pin at first has a very small acceleration vertically, whereas the pivot mounted on the collar 4S has a greater accelera-tion vertically, since it is several degrees.- i=n advance of the pin 45. As a result orn this procession, a thrust is exerted upon the control link 35 which causes. the crank arm to make an oscillation with regard to the shackle 5l, by which the hook 53 is moved from the position shown in Fig. et to that shown in Fig. 5. As the pin passes the planethrough the axis of shalt-3:7 which is perpendicular tothe direction of the push-link ilo, the movement of the control link t9 becomes less than the movement of the push-link 46: as the result ot which the hook is slightly retracted, but not tor a sutiicient distance to release the push-up bar 2l from the socket 52. The result of this retrograde movement` ot the hook 53 is to prevent the hook trom being Yforced against the depending flange 20 of the car tloor, which might result in a buckling ot the tloor iiange. The hook 53 assures at all times that the car body is positively connected to the push-link 46.

'ln this way, the adjacentside of the car body is raised, and the load on the body is discharged at the opposite side into the chute 10. lt will be understood that itis preferred to provide an automatic door opening system, by which the door at the appropriate side ot the car is caused to open l automatically during the raising or tilting ot the body, as represented in Fig. 2. At the final raising and dump-ing position, the car body and its doors, the push-link 41:5 and the control link i9 are in the position shown in dash lines in Fig. 2.

During' the counter-clockwise movement ot the radius arms 38, the links 77 are pushed to rock the cranks T3, and these in turn push the links T6 to straighten out the toggle 74',- 7 5. This latter straightening causes the lever arms 7() to be rocked upwardly to present the bar 71 beneath the vehicle undertrame 14. As the dump. body tilts and the center of gravi-ty shifts towards the lower side, this side is supported upon the undertrame laV by the' trunnions 16. The underframe 14; is solidly supported by the bar 7l, and no torsional strain is 'transmitted from the center of the vehicle towards. the wheel trucks.

When the mechanism has reached the position shown in dash lines in Fig. 2, the motor 3l is brought toa standstill preferably by means otI a limit switch not shown. c car body may now be returned to the '".sial or transport position by reversing the direction of travelof the motor 3i, so that the bullwheel 36 is driven by the saine reduction gear train in a clockwise direction. ils a result of this clockwise movement otl the bullwheel 36, the push-link 46 is withdrawn downwardly, and drags the car body with it, by reason of the engagement ot the hook upon the push-up bar 2l, irrespective of the position oit the center of gravity of the car body and any residual load there on. The car body is thus positively returned to its transport position. During the downward movement of the push link 46, the control link i9 operates the crank 55 in a. reverse manner to that set forth above, and finally, when the control link i9 and push link 46 have reached the approximate posilin ill)

Cid

tion shown in full lines in Fig. 2, the hook 53 releases the push-up bar 2l. Thereafter, the push-link 46 makes a slight further downward movement, and the ends of its pin 56 encounters the guiding notch 57 in the apron l0, so that the shackle 5l is brought back to the identical initial position.

luring this return movement, the radius arms 38 have remained stationary, and hence the bar il has continued in supporting relation to the underframe.

At substantially this moment, a plunger plate 6G which has a guide stem 6l held in an ear (32 on the bullwheel 36 by means of a pin 63, comes in Contact with one of the arms 35%. A spring 64 is provided between the ear 62 and the plate 60 to soften the shock of impact. Since there is no longer a load upon the shackle, which has cleared the push-up bar 2l and all other parts of the car, the arm 38 is gently moved in a clockwise direction by the rotation of the bullwheel 36 and its plunger plate 60. As the radius arms 38 move in this clockwise direction, the weight of the lever a2 causes it to remain pressing against the hold-down bar l5, in which manner the link 43 is caused to move downward and engage with the teeth on the periphery of the bullwheel 36, thus locking the radius arms 3S and associated parts to the bullwheel 36 for positive movement therewith. The radius arms 38 are thereafter positively swung to the non-operative position shown in Fig. l, in which there is no possibility of contact between any parts of the car with any parts of the dumping mechanism and are brought to a standstill by stopping the motor 31 preferably by a second limit switch.

rlhe arms and bar 7l have meanwhile been returned to the lowered position, out of the way of the trucks and other parts of the vehicle, by the traction of links 77 upon the cranks 73, and of these in turn by the links 76 upon the toggle Tel, 75,

The car may now be transported away from the dumping position above the chute l0, and a new car moved into that position for dumping, which operation is accomplished in the manner above indicated.

It will be particularly observed that although there is a great shock upon the car body as the load leaves the upper' side of the tilted car and moves the center of gravity toward the other side, which normally would tend not only to carry the body completely over about the trunnion 16, but also would serve to press downwardly at this trunnion upon the underframe 14 of the car and raise the opposite side of this underframe, yet by the present construction, the hooks 39 on the radius arms 38 are brought into close engagement with the hold-down bar l5 and the bar 71 is presented to support the underframe at the point near wher the greatest loading occurs, to prevent a twisting or distortion of the underframe of the car: while the push link i6 is positively locked to the car body `by the hook It is apparent, therefore, that very little strain is placed upon the underframe or 'cody of the car which might tend to twist these members, and therefore the said members may be made much lighter than heretofore: since the bar 7l, the socket 52 and the hooks engage the underframe and body approximately midway between the trucks, this action occurs at the location of the greatest tendency towards twisting.

Obviously changes may be mace in the design and arrangement of the several parts without departing from the invention as set forth in scope by the appended claims.

Having thus described my invention, what I claim is l. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, devices to engage the underframe and hold the same against movement during dumping, said holding devices being movable into engagement with said underframe and out of engagement therewith into a position clear of the said underframe for the entrance or removal of said vehicle with regard to saidrdevice, means to move said holding devices into and out of engaging position, devices to raise the adjacent side of the dump body', and devices actuated in unison with said raising devices to lock said dump body to said raising devices to prevent upsetting of the dump body during dumping.

2. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, guide devices to present the vehicle at a predetermined position in said device, devices to engage the underframe and hold the same against movement during dumping, devices to raise the adjacent side of the dump body, and devices actuated in unison with said raising devices to lock said dump body to said raising devices to prevent upsetting of the dump body during dumping.

3. A dumping device for vehicles having an underframe and a body carried thereby and adapted to be tilted for dumping, comprising devices for engaging the underframe and holding the same from movement during the relative tilting of the body, devices for engaging and raising the body to dumping position, and means to simultaneously position said holding and raising de Tices.

e. A dumping device for vehicles having an underframe and a dump body adapted to be tilted thereon for side dumping, comprising an actuating mechanism, devices operated thereby for automatically engaging the underframe of the ca r and holding the same during dumping, and devices automatically operat-ed by said actuating` mechanism for engaging the dump body for raising the same to dumping position.

A dumping device for vehicles having an underframe and a dump body adapted to be tilted thereon for side dumping, comprising an actuating mechanism, devices operated thereby for automatically enga-ging the underframe of the car and holding` the same during dumping, and devices automatically operated by said actuating. mechanism for engaging the dump body for raising the same vto dumping position, said faising means being provided With means for engaging and holding the body from upsetting.

6. ln a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, a holddoivn arm, means to swing said arm into engagement with the underframe, a push-up link, said means servingto move said pushup link into engagement with said dump body and to actuate said push-up link to raise the adjacent side of the car body.

7. ln a dumping dev-ice for vehicles `having an underfraine and a dump body adapted to tilt thereon for side dumping, a bullwheel, a hold-down arm, means to connect said bullwheel and said arm for cooperative movement to xpresent said arm in engagement With the underframe, .a push-up member, said arm .presenting said member into operative relation With the dump body, and a connection between said bul-lwheel and said member vto raise the adjacent side ofthe dump body during a fur-ther movement of the bullivheel after presentation of said arm upon said underframev S. ln a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, a holddown member, a push-up member, ,a locking member, and common means to position said hold-down member lin engagement with the under-frame, then to position said push-up member and said locking member in engagement with said dump body, and finally to tilt the dump body for dumping.

9. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, a holddoivn member, a push-up member, common means to successively position said holddown member in engagement jivith said underframe and to actuate said push-u-p member to tilt the dump body, and `means upon said hold-down member 'to guide and aline said push-up member into its lov/ered position.

l0. In aA dumping device for vehicles having an underframe and a dum-p body adapted to tilt thereon for side dumping, a bu-llwheel, a hold-,down member, means to connect said bullwheel and said hold-'down member for simultaneous ymovement for theengagementof said member with the underframe, and a trip to release said connecting means upon the engagei'nent of said member With said underframe.

All. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon forl side dumping, a hold-down member, a push-up-member, and a mechanism to successively present said hold-down member in engagement With the underframe to prevent movement thereof duri-ng dumping and to `actuate said pushup member for raising the dump body for dumping duri-ng operation of said mechanism in one direction, and to successively return the push-up member to lowered position and .to remove the hold-down member from the path of the vehicle during operation thereof in the other direction.

l2. In a vdumping device for vehicles hav! ing an underframe and adump body adapted to tilt thereon for Y side dumping, a holddown member, a push-up member, a mechanism to successively prese-nt said hold-down member in engagement With ,the underframe to prevent movement thereof during dumping and to actua-te .said push-up member for raising Ithe dump body for dumping during operation of said mechanism in one direction, and to `successii'rely return the push-up member to lowered position vand to remove the holddown member from the path of the vehicle during operation thereof in the other direction, and a device actuated by said mechanism to lock said dump body t0 the push-iup member While in the raised position.

13. In a ldumping ,device for cars having an underframe and a -dump body adapted to .tilt about va. trunnion of said underframe for side dumping, a bulhvheel, a pair of radius arms loosely' pivoted about the axis of said bu-llvvheel, `hooks formed integrally with said arms to engage the under rame `of the car, a pin on the -periphery of the bullwheel parallel With itsaxis, a push-up link journa-lled upon said pin, a second pivot pin attached to said bullivheel in advance of said rst pin, a control link journailled upon saidwsecond link, a shackle upon said push-up link adapted to engage the dump body, a hook in said shackle adapted to cooperate therewith to lock said dump body to said push-up link, said control link being connected operatively lto said hook to act-nate the same, a trip lever .on said arms, a locking link connected to said `trip lever and normally engaged With said bullwheel to lock said arms thereto, said trip lever Lbei-ng' vadapted to Withdraw said locking link from said teeth upon engagement of said arms and hooks upon the underframe, said bullvvheel and pins upon further -movement of said bullwheel serving to actuate said push-up link to tilt the dump body and to lock said push-up link to said dump body and upon reversal of such movement to lower and return said dump body, means upon said arms to guide said push-up link to the identical initial position, and a device upon said bullwheel to move said radius arms away from said underframe after the completion of the lowering of the dump body.

141-. In a dumping' device for vehicles having an underframe and a dump body adapted to be tilted thereon for side dumping, said body having a depending flange and a bar thereon, a push-up member, mechanism to present said member against the bar and to raise the dump body into a tilted dumping position, a locking device actuated from said mechanism to lock said body to said member during raising, said locking device having a retrogrode movement during the linal tilting to remove it from pressing against the depending flange.

15. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, a device to raise one side of said dump body, a device to support said underframe adjacent the lower side during tilting, and a mechanism to bring said devices into and out oit' operative positions simultaneously.

16. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, a device to raise one side of said dump body, a device to hold down the adjacent side of the underframe, a device to hold up the opposite side of the underframe, and a mechanism to bring said devices into and out of operative positions simultaneously.

17. In a dumping device for vehicles having an underiirame and a dump body adapted to tilt thereon for side dumping, a device to raise one side of said dump body, a device to hold down the adjacent side of the underframe, a device actuated from said holding device to support the opposite side of the underframe, and a mechanism to'bring said device into and out oi' operative positions simultaneously.

18. In a. dumping device :tor vehicles having an underi'rame and a dump body adapted to tilt thereon for side dumping, a device to support the side of the underframe adjacent the lowered side of the dump body, a device to hold down the opposite side of the underitrame, means to raise one side of the dump body, mechanism to move said devices into and out of operative positions, said mechanism serving to actuate said raising means after said devices are in operative positions. j

19. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for side dumping, devices Leafie to engage the underfi'ame and hold the same against movement during dumping, devices to raise one side of the dump body for dumping, means to simultaneously position said holding and raising devices, and devices actuated in unison with said raising devices t-o lock said dump body to said raising devices to prevent upsetting of the dump body during dumping.

20. A dumping device i'or vehicles having an underframe and a body carried thereby and adapted to be tilted for dumping, comprising devices for engaging the under- 'frame and holding the same from movement during the relative tilting of the body, said holding devices being movable into engagement With said underframe and out of engagement therewith into a position clear of said underframe for the entrance or removal of said vehicle With regard to said device, means to move said holding devices into and out of engaging position, and means to simultaneously position said holding and raising devices.

21. In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for dumping, a bull- Wheel, means to rotate the bullvvheel about its axis, a lift member pivoted to the rim of said bullwvheel and adapted to be moved into and out of operative engagement With the dump body, said member being adapted during the rotation of said bullvvheel in one direction to lift the body for tilting and during the rotation of the bullvvheel in the opposite direction to lower the body from tilting position, a locking device to latch said member to said body, and means operatively connected to said locking device to move the same to locking position during the Hist-mentioned rotation of said bull- Wheel.

22. In a dumping device :for vehicles having an underframe and a dump body adapted to tilt thereon for dumping, a bullvvheel, means to rotate the bullvvheel about its axis, a lift member pivoted to the rim of said bullvvheel and adapted to be moved into and out of operative engagement with the dump body, said member being adapted during the rotation of said bullivheel in one direction to lift the body for tilting, and during the rotation of the bullvvheel in the opposite direction to lower the body from tilted position, a locking device to latch said member to said body, and a link pivoted to the bullvvheel at a point eccentric to the pivot of said lift member thereon, said link being connected to said locking device to actuate the same during the rotation of said bullwheel.

23.' In a dumping device for vehicles having an underframe and a dump body adapted to tilt thereon for dumping, a bullvvheel, means to rotate the bullWheel about its axis,

and zi lift member carried by said bullwheel, said bullwheel in one position of rotation carrying said lift member free of the vehicle so the latter may be brought into place, said bullwheel during` rot-ation bringing said lift member into lifting relation with said dump body and thereafter serving to lift. and tilt the same, said bullwheel thereafter serving; to move S21-1d lift member to lower said body .onto said underframe and to remove said l" HENRY FORT FLOWERS. 

